mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
synced 2026-11-03 16:13:17 +01:00
Anshuman Khandual
1c2f7d14d8
Currently most platforms define pmd_pgtable() as pmd_page() duplicating the same code all over. Instead just define a default value i.e pmd_page() for pmd_pgtable() and let platforms override when required via <asm/pgtable.h>. All the existing platform that override pmd_pgtable() have been moved into their respective <asm/pgtable.h> header in order to precede before the new generic definition. This makes it much cleaner with reduced code. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Anshuman Khandual <[email protected]> Acked-by: Geert Uytterhoeven <[email protected]> Acked-by: Mike Rapoport <[email protected]> Cc: Nick Hu <[email protected]> Cc: Richard Henderson <[email protected]> Cc: Vineet Gupta <[email protected]> Cc: Catalin Marinas <[email protected]> Cc: Will Deacon <[email protected]> Cc: Guo Ren <[email protected]> Cc: Brian Cain <[email protected]> Cc: Geert Uytterhoeven <[email protected]> Cc: Michal Simek <[email protected]> Cc: Thomas Bogendoerfer <[email protected]> Cc: Ley Foon Tan <[email protected]> Cc: Jonas Bonn <[email protected]> Cc: Stefan Kristiansson <[email protected]> Cc: Stafford Horne <[email protected]> Cc: "James E.J. Bottomley" <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: Christophe Leroy <[email protected]> Cc: Paul Walmsley <[email protected]> Cc: Palmer Dabbelt <[email protected]> Cc: Heiko Carstens <[email protected]> Cc: Yoshinori Sato <[email protected]> Cc: "David S. Miller" <[email protected]> Cc: Jeff Dike <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Chris Zankel <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
65 lines
1.5 KiB
C
65 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _ASM_IA64_PGALLOC_H
|
|
#define _ASM_IA64_PGALLOC_H
|
|
|
|
/*
|
|
* This file contains the functions and defines necessary to allocate
|
|
* page tables.
|
|
*
|
|
* This hopefully works with any (fixed) ia-64 page-size, as defined
|
|
* in <asm/page.h> (currently 8192).
|
|
*
|
|
* Copyright (C) 1998-2001 Hewlett-Packard Co
|
|
* David Mosberger-Tang <[email protected]>
|
|
* Copyright (C) 2000, Goutham Rao <[email protected]>
|
|
*/
|
|
|
|
|
|
#include <linux/compiler.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/page-flags.h>
|
|
#include <linux/threads.h>
|
|
|
|
#include <asm-generic/pgalloc.h>
|
|
|
|
#include <asm/mmu_context.h>
|
|
|
|
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
|
|
{
|
|
return (pgd_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
|
|
}
|
|
|
|
#if CONFIG_PGTABLE_LEVELS == 4
|
|
static inline void
|
|
p4d_populate(struct mm_struct *mm, p4d_t * p4d_entry, pud_t * pud)
|
|
{
|
|
p4d_val(*p4d_entry) = __pa(pud);
|
|
}
|
|
|
|
#define __pud_free_tlb(tlb, pud, address) pud_free((tlb)->mm, pud)
|
|
#endif /* CONFIG_PGTABLE_LEVELS == 4 */
|
|
|
|
static inline void
|
|
pud_populate(struct mm_struct *mm, pud_t * pud_entry, pmd_t * pmd)
|
|
{
|
|
pud_val(*pud_entry) = __pa(pmd);
|
|
}
|
|
|
|
#define __pmd_free_tlb(tlb, pmd, address) pmd_free((tlb)->mm, pmd)
|
|
|
|
static inline void
|
|
pmd_populate(struct mm_struct *mm, pmd_t * pmd_entry, pgtable_t pte)
|
|
{
|
|
pmd_val(*pmd_entry) = page_to_phys(pte);
|
|
}
|
|
|
|
static inline void
|
|
pmd_populate_kernel(struct mm_struct *mm, pmd_t * pmd_entry, pte_t * pte)
|
|
{
|
|
pmd_val(*pmd_entry) = __pa(pte);
|
|
}
|
|
|
|
#define __pte_free_tlb(tlb, pte, address) pte_free((tlb)->mm, pte)
|
|
|
|
#endif /* _ASM_IA64_PGALLOC_H */
|